Biogeosciences
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Articles | Volume 20, issue 12
Articles | Volume 20, issue 12
https://doi.org/10.5194/bg-20-2251-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-2251-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 12
Research article
 | 
20 Jun 2023
Research article |  | 20 Jun 2023

Assessing global-scale organic matter reactivity patterns in marine sediments using a lognormal reactive continuum model

Sinan Xu, Bo Liu, Sandra Arndt, Sabine Kasten, and Zijun Wu

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Latest update: 30 Jun 2025
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Short summary
We use a reactive continuum model based on a lognormal distribution (l-RCM) to inversely determine model parameters μ and σ at 123 sites across the global ocean. Our results show organic matter (OM) reactivity is more than 3 orders of magnitude higher in shelf than in abyssal regions. In addition, OM reactivity is higher than predicted in some specific regions, yet the l-RCM can still capture OM reactivity features in these regions.
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